HVACopediaHVAC error codes
1135 codes from 16 brands, each with likely causes and test steps written for technicians.
AirQuest5 codesCarrier128 codesDaikin25 codesFlowMax13 codesGoodman19 codesHeat & Glo3 codesICP30 codesLennox500 codesMidea48 codesMitsubishi17 codesNapoleon1 codesNavien106 codesNoritz20 codesRheem77 codesRinnai139 codesSkytech4 codes
For licensed technicians. Gas, electrical and refrigerant work must be done by a qualified, licensed person. Shut off power and gas before servicing, never bypass a safety control, and follow the manufacturer’s manual for the exact model; it and local codes always take priority. HVACopedia is not affiliated with any manufacturer; brand and model names only identify the equipment.